Guide for sewing machines



De.z6,1922. 1,439,944

y J. E. CHALMAN.

GUIDE FOR SEWING MACHINES.

.FILED DEC. 2l, 1917, 3 SHEETS-SHEET l 1,439,944 J. E. CHALMAN. GUIDEFoR SEWING MACHINES.

FlLEn nEc. 2l 1917. 3 SHEETS-SHEET 2 a @2, .Ze/'C996 Z6 I Patented Dec.2id; i922.

ieri

tissen- JOHN E. CI-IAIMAN; OF CHICAGO, ILLINOlS. ASSGNOB TO UNION PECIALMACHINE COMPANY, OF CHCAGO,'ILL1\TOS, A CORPORATION 0F ILLINOIS. i

GUIDE FOR SEWING I/IACHXNES.

Application filed. December 21, 1917. Serial No. 208,278.

5 illinois,A have invented certain new and useful improvements in`Guides forSewing Machimes, of which the following is a description,reference being had to the accompanying drawing and to the `figures ofreference marked thereon.

The invention relates to new and useful improvements in guides forsewing machines and more particularly to a guide which may be used foroverlapping the fabric sections and directing the same to a stitchforming mechanism. l

In the stitching of heavy materials such as for tents or the like, it isdesirable that the large and extensive parts of the tents pass `thestitchingmechanism outside of the line of feed, while the smaller partswhich are beingjoined tothe larger parts, pass beneath the overhangingarm of the machine or inside the line of feed. lt is also desirable thatthe sections being stitched overlap each other in a certain desiredrelation; sometimes the inner or smaller section should overlap theouter or extensive section,lwhile in other instances, the smallersection should underlie the outer or extensive section, as the parts arestitched. y i

tn object. of the presentinvention is to provide a guiding mechanismlfor overlapping fabric sections which are to be stitched, which guidingmechanism may be quickly reversed so that the inner section may becaused to overlie theouter section or underlie the outer section as theoperator desires. further` object of the invention is to provide aguiding mechanism of ltheabove character wherein the parts areadjustable so that one section may be caused to overlap the othersection to a greater or less eirtent and the edges of both sections maybe shifted transversely of the line of feed for varying their positionrelative to the needles which stitch the sections together.

These and other objects will in part be obvious and will in part behereinafter more fully disclosed.

ln the drawings, which show by way of illustration, one embodiment ofthe inventona''- i i i f i i .Figure 1 is a front view of a. portion ofa sewing machine having my improved mechanism applied thereto; Fig. is aview partly in plan and partly in section, with the fabric sectionsbroken away toshow the relation of the presser foot and the 'sewingmechanism to the strip guiding and feeding mechanism;

F ig. 8 is a sectional view along the line of feed7 but showing theguiding device in end elevation;

F ig. 4t is a perspective view or" my iinproved guiding device and thesupporting plate therefor; ,l

5 is a sectional view `on the line 5-5 of Figure 2, but with the fabricin position for guiding;

.F ig. 6 is a plan view of the guiding device and supporting platetherefor showing the guidin,` device reversed from the posi- C7 tionshown in 2;

Fig. 7 is a diagrammatic view, showing the fabric sections overlapped bythe guide when positioned as shown in `Fig. 5.;

Fig. 8 is a similar view but showing the fabric sections as overlapped.when the guide is positioned as shown in Fig. 6.

l have shown my improved guiding mechanism as applied to a sewingmachine having a work support 1, an overhanging arm 2. in which a needlebar 3 reciprocates.

lvlounted on the needle bail are two spaced needles land 5.(lo-operating withthe needie 4t beneath the worksupport is a looper y 6.(lo-operating with the needle 5 is a vlooper 7. rlhe material is held onthe work support `by a presser foot 8, carriedby a presser bar 9supported by the overhanging arm 2. rlhe material is fed across the worksupport by a feed dog 10 mounted on a feed `is fixed to a post 18whichlextends through the plate 12 and an opening 19 in the work support2. A spring 20surrounds this post and bears at its `upper end ragainstthe plate 12. The lowery end of the spring bears against a washer 21which isvheld to the post' 18 by a headed screw The purposeof Crt CIT

this spring is to yieldingly press the guiding member against the platel2. #ruiding member l? has an oif'erlianging `ledge 23 thus forming aguiding recess which is adapted to receive'tlie 'fabric section which isguided therebyto the stitching' mechanism. rlhe vertical end wall 25guides the edge of the fabric section. Mounted on'tlie overhanging ledge22) is plate 26 which is `pro-V vided with an. upturned wall 27. Thisupshown in Fig. 5, said pin is adapted to engage an opening 30 in saidplate. rllhis pin serves to hold the guiding` member in lposition fordirecting the fabric sections.

The materials being stitched consist of an outer section M which may `hethe large eX- tensive section of a tent or the lil-re, and an innersection' Ni, which may be a smaller,` strip which is to be stitched tothis outer` section, ln some instances it desirable to causethe striplli, to overlap the outer section M, as shown inFig. 7. For thispurpose, the guide isset as shown in Figs. i, 2, 3 and `5, and `as thefabric sect-ions pass through the guide they will be overlapped in themanner stated. In Figs. 7 and S of the drawings, I have shown at N and Nthe lines of-stitching formed by the needles l andl 5 respectively. Theneedles are widely spaced and the guides will set so that the lines ofstitching pass through the fabric sections adjacent the extremes of theoverlapped' portions. Itis sometimes desirable to cause the strip Mpassing underneath the `overhanging arm to underlie the outer orextensive section M. For this purpose the opcratoririerely lifts theguiding member 1T,

freeing the pin 48 ,from the opening 29 and. turns the saine about thepost 1.8 as a pivot, until the pin [i8 is brought into register with theopening It is then released and the spring will cause said pin to engagethe openinfr and hold the guide in this position. The section M is thenguided by the vertical wall 2i', while the section M yis then guided bythe vertical wall 25.

p' By shifting the plate l2 laterally through vlooseiriing the screws l5and 16, the position of the guiding wall 25 relative to the needles maybe varied. After this wall has'been properly setto cause the needle topass at the desired distance backfrom the edge of the underlying stripthen the plate 26 may 's id guiding member for guiding a section inoverlapped relation to the section passing lapping fabric sections whichmay be adjusted so as to shift the positions of the overlapped sectionsor vary the extent 'of the overlap and which guiding means can also bequickly shifted so as to cause either section desired to overlap theother section.

it is obvious that minor changes in thel details of construction andarrangement of yparts may be made without departing from 'the spirit fthe invention as set forth in the appended claims. 1

Having thus described my invention, what i claim as new and desire tosecure by Letters Patent, is 1- 1. A'. guiding device for'overlappingfabric sections including in combination, a supporting plate, guidingwalls for directing the respective fabric sections in overlappedrelation toeach other, and means for permitting the guiding walls to beshifted s0 as to cause either section t0 overlap the other.

guidingdevice for overlapping fabric sections including in combination,a support- `ing plate, a guiding member having a guidv ing` 'wall forone ofthe fabric sections, means for pivotally supporting said guidingmember ou said plate, for permitting the same to be shifted to cause itsguiding wall to face in either direction longitudinally of the t, and asecond. guiding' wall carried by along the first namedguiding wall. i

3. i guiding device for overlapping fabric sections, including in'combination, a supporting plate, a guiding member having guiding wallsfordirecting fabric sections in overlapped relation to "each other,

a depending post on which said guiding member is mounted` said dependingpost extending downwardly through said plate,

a spring surrounding said post and yieldingly pressing said guidingmember against the plate, said plate having openings formed tliereinvonopposite sides of said supporting post, said guiding member having a piuadaptedl to engage either opening whereby the guidiiwj,device may becaused Vto face in either direction longitudinally of said plate.

ll. guiding device for overlapping fabric sections, `including in.combination, a supporting plate, a guiding member having a 'guidingrecess, a depending post on which ino y iio i ,aegee-fi saidsiujlporting post, said guiding member having a pin adapted to engageeither open lng wherelg y the guiding :recess may `be caused to face ineither direction longitudinally of said plate, a plate having a verticalwall for directing the edge of a. section in overlapped relation to thesection passing through the guiding member7 said plate being secured tosaid guiding member and shiftable therewith.

A guiding device for overlapping fabric sections including incombination, a supporting plate, a guiding member having guiding wallsfor directing fabric sections in overlapped relation to each other,adepending post on which said guiding member is mounted, said dependingpost extending downwardly through said plate, a spring surrounding saidpost and yieldingly pressing said guiding member against the plate, saidplate having openings formed therein on opposite sides of saidsupporting post., said guiding member having a pin adapted to engageeither opening whereby the guid ing device may be caused to face ineither direction longitudinally of said plate, and means whereby saidplate may be attached to the work support of a sewing machine so thatsaid plate may be adjusted in a direc'- ton at right angles to the lineof feed.y

(3. guiding device for overlapping fabric sections, including incombination, a supporting plate, a guiding member havinga guidingrecess, a depending post on which said guiding member is mounted, saiddepending post extending downwardly through said plate, a springsurrounding said post and yieldingly pressing said guiding membei'against the plate, said plate having oliienings formed therein onopposite sides of said supporting post7 said guiding inemn bei' having apin adapted to engage either opening whereby the guiding recess may becaused to face in either direction longitudinally of said plate, andmeans whereby said plate may be attached to the work support of a sewingmachine so that said plate may be adjusted in a direction at rightangles to the line of feed, a plate adjustably secured' to theguidingmember whereby the same may be shifted in a direction at rightangles te the line of feed of the sewing machine, said plate having anupturned edge for diresting the overlapping fabric edge passing throughthe guiding device.

7. A. sewing machine guide for overlapping fabric sections including incombination a guiding device having a recess for re ceiving and guidingthe edge of one fabric sectione a second guiding device attached to therst named guiding device and having a wall for guiding the edge of asecond fabric section in overlapping relation to the edge of the iirstmentioned section, and means for permitting said guiding devices to beshifted so to cause either section to overlap the other.

ln testimony whereof, l aflix my signature, in the presence of twowitnesses.

JOHN E. CHALMAN.

llilitnesses WILLiAM J. KAY, S. GEORGE TATE.

